A York Sunline 3 to 6 ton model number such as DH060N10P2AAA2 reads left to right as product category, product identifier, cooling size, heat type, airflow, voltage, installation options, additional options and product generation. York technical guides 036-21506-003-C-0405 (DH 036–060) and 036-21502-002-A-0303 (DM 036–072) define the codes, so DH060N10P2AAA2 is a 5-ton, R-22 high-efficiency unit with 99 MBH aluminized-steel gas heat, belt drive with single-input economizer, 208/230-3-60 power, no installation or additional options, second generation.
What order are the fields in?
York's later DH technical guide (254597-YTG-B-0507) prints its nomenclature example field by field as "D H 048 N04 A 2 A AA 1": category, identifier, capacity, heat, airflow, voltage, installation options, additional options, generation. The model numbers on our DH060, DM060 and DJ060 pages follow the same pattern.
| Position | Field | Example (DH060N10P2AAA2) |
|---|---|---|
| 1 | Product category | D |
| 2 | Product identifier | H |
| 3–5 | Nominal cooling capacity | 060 |
| 6–8 | Heat type and nominal heat capacity | N10 |
| 9 | Airflow | P |
| 10 | Voltage | 2 |
| 11 | Installation options | A |
| 12–13 | Additional options | AA |
| 14 | Product generation | 2 |
Some units carry ZZ and four more digits, for example DH060C00N2AZZ30001. Guide 254597-YTG-B-0507 says ZZ is assigned when the desired option combination is not listed, and the configuration options are then located in digits 15–18.
What do the first two letters mean (DH, DM, DF, DJ)?
| Code | Meaning in the York guide | Source |
|---|---|---|
| D (position 1) | Air conditioner, single package | 036-21506-003, 036-21502-002 |
| B (position 1) | Heat pump, single package | 036-21506-003, 036-21502-002 |
| M | R-22 standard efficiency (DCG/DCE) | 036-21506-003, 036-21502-002 |
| F | R-22 medium efficiency (DEG/DEE) | 036-21506-003, 036-21502-002 |
| H | R-22 high efficiency (DHG/DHE) | 036-21506-003, 036-21502-002 |
| Q | R-22 standard efficiency heat pump (BCH) | 036-21506-003, 036-21502-002 |
| J | Ultra efficiency, belt drive only | 036-21687-002-A-1105 (DJ 036–060) |
The DH guide says all high-efficiency models come standard with belt drive. Code definitions change between guide editions (254597-YTG-B-0507, for example, describes H as a 12.0 SEER A/C), so match the guide to your unit's era.
How do you read the size and heat code?
The three digits after the letters are nominal cooling capacity: 036 = 3 ton, 048 = 4 ton, 060 = 5 ton, and 072 = 6 ton in the DM guide. The next three characters are the heat type and size.
| Heat code | Meaning (DH and DM guides) |
|---|---|
| C00 | Cooling only, suitable for field-installed electric heat |
| N04 | Gas heat, 40 MBH, aluminized steel (036) |
| N06 | Gas heat, 60 MBH, aluminized steel (048) |
| N08 | Gas heat, 79 MBH, aluminized steel (036, 060; DM guide adds 072) |
| N10 | Gas heat, 99 MBH, aluminized steel (048, 060; DM guide adds 072) |
| S04, S06, S08, S10 | Same sizes as the N codes, stainless steel |
| E05, E07, E10, E15, E20, E30 | 5, 7, 10, 15, 20 or 30 kW electric heat |
| D06, D10 | 2-stage gas heat, aluminized steel, 60 or 100 MBH output (254597-YTG-B-0507); the DJ guide's 2-stage ratings table notes these models are 3-phase only |
| T06, T10 | 2-stage gas heat, stainless steel, 60 or 100 MBH output (254597-YTG-B-0507) |
Values shift slightly by edition: the later DH guide 254597-YTG-B-0507 lists N08 and S08 as 80 MBH output and N10 and S10 as 100 MBH output, and notes that a D10 or T10 on a 036 model is 92 MBH output. Our DJ060 page shows both D and T codes; the copy of the DJ guide we read was too garbled to confirm its own D and T wording, so we used the DH guide's definitions above.
What do the airflow and voltage codes mean?
| Airflow code | Meaning (DM guide 036-21502-002; the DH guide 036-21506-003 lists only N, P, R and Y) |
|---|---|
| A | Direct drive |
| B | Direct drive with single-input economizer |
| D | Direct drive with motorized damper |
| L | Direct drive, BAS-ready economizer (no BAS controller), 2 in. pleated filters |
| N | Belt drive |
| P | Belt drive with single-input economizer |
| R | Belt drive with motorized damper |
| Y | Belt drive, BAS-ready economizer (no BAS controller), 2 in. pleated filters |
| Voltage code | Power supply |
|---|---|
| 1 | 208/230-1-60 |
| 2 | 208/230-3-60 |
| 4 | 460-3-60 |
| 5 | 575-3-60 |
The voltage digit matters when you order motors. For example, the venter motors on our DH060 page come in a 208/230V and a 460V version.
What do the option letters and the last digit mean?
The installation options letter combines five factory options: 1 = disconnect, 2 = non-powered convenience outlet, 3 = supply air smoke detector, 4 = return air smoke detector, 5 = powered convenience outlet.
| Letter | Options | Letter | Options |
|---|---|---|---|
| A | None | M | 1, 2, 3 and 4 |
| B | 1 | N | 2 and 3 |
| C | 2 | P | 2 and 4 |
| D | 1 and 2 | Q | 2, 3 and 4 |
| E | 3 | R | 3 and 4 |
| F | 4 | S | 5 |
| G | 1 and 3 | T | 1 and 5 |
| H | 1 and 4 | U | 1, 3 and 5 |
| J | 1, 2 and 3 | V | 1, 4 and 5 |
| K | 1, 2 and 4 | W | 1, 3, 4 and 5 |
| L | 1, 3 and 4 | X | 3 and 5 |
| Y / Z | 4 and 5 / 3, 4 and 5 |
The two additional options letters cover cabinet extras. AA is none, AB phase monitor, AC coil guard, AD dirty filter switch, and AE through AH combine those three. Codes starting with C add a CPC controller and codes starting with J add a Johnson UNT controller (DH and DJ guides).
The last digit is product generation. The DH guide defines 1 = first generation and 2 = second generation. Many units on our pages end in 3, which the guides we read do not define, so give us the full model and serial number for those.
Parts involved
| Component | Which code points to it | Where to find it |
|---|---|---|
| Venter motor, 208/230V | Gas heat code; match the motor voltage to your unit | York S1-02424115018 Venter Motor, 1/40 HP, 3200 RPM, clockwise, 208/230V 1-phase 60 Hz | OEM Source 1 Part |
| Venter motor, 460V | Gas heat code; 460V version | York S1-02424115019 Venter Motor, 1/40 HP, 3200 RPM, clockwise, 460V 1-phase 60 Hz | OEM Source 1 Part |
| Inshot burner and main orifice | Gas heat code; listed for the gas models on our DH060 page | York S1-02921121000 Inshot Burner | OEM Source 1 Part, York S1-02920423042 Orifice, Burner #42 (.0935) | OEM Source 1 Part |
| Belt-drive blower motor | Airflow N, P, R or Y (belt drive) | York S1-02419623718 Blower Motor, 1.5 HP, 1725 RPM, 208-230/460V 3-Ph, 60/50 Hz | OEM Source 1 Part |
| Everything else | Browse by part type | York Source 1 (S1) Replacement Parts |
Which York units this applies to
- York DH060 parts: 5-ton Sunline, the example used above.
- York DM060 parts: 5-ton Sunline, M identifier.
- York DJ060 parts: 5-ton Sunline with the J identifier and D/T heat codes.
- York DH036 parts: 3-ton Sunline, same layout.
- York DF072 parts: 6-ton Sunline, F identifier.
- York DH090 parts: 7.5-ton Predator. It has its own guide, not covered here.
- York J03ZF parts: J-code units use a different model number layout.
To turn a Source 1 part number into the right listing, see what a York S1 part number means.
Scope: This article covers York technical guides 036-21506-003-C-0405 (DH 036, 048 and 060), 036-21502-002-A-0303 (DM 036 to 072) and 036-21687-002-A-1105 (DJ 036 to 060), with the field order and ZZ rule from 254597-YTG-B-0507 (DH 036 to 060, later edition). It does not cover Predator 7.5 ton and larger units, J-code (ZF/ZJ) units or later R-410A products that reuse the same letters.
Before you order
Read the full model number and serial number off the unit's nameplate, and the part number off the failed part. Model numbers with ZZ, generation 3 or letters not shown above need the serial number to pin down the parts list. To confirm fit, contact us at help@totalhvacparts.com or 610-487-7999 with the model, serial and part number.
Frequently Asked Questions
What does the H mean in a York DH060 model number?
In York technical guide 036-21506-003-C-0405, H in the second position means R-22 high efficiency (DHG/DHE). The guide says all high-efficiency models come with belt drive as standard.
What does N10 mean in a York Sunline model number?
In DH guide 036-21506-003-C-0405, N10 is 99 MBH gas heat in aluminized steel, offered on the 048 and 060 sizes; the later 254597-YTG-B-0507 lists it as 100 MBH output. S10 is the same size in stainless steel.
What does the voltage digit 2 or 4 mean on a York rooftop unit?
In the Sunline DH and DM guides, 1 is 208/230-1-60, 2 is 208/230-3-60, 4 is 460-3-60 and 5 is 575-3-60.
What does ZZ mean in a York Sunline model number?
York guide 254597-YTG-B-0507 says ZZ is assigned when the option combination is not listed, and the configuration options are then in digits 15–18. Send us the full model and serial number for these units.
Sources
- York form 036-21506-003-C-0405, Technical Guide, Single Package Gas/Electric Units and Single Package Air Conditioners, DH 036, 048 and 060 (product nomenclature, pages 3–4)
- York form 036-21502-002-A-0303, Technical Guide, DM 036, 048, 060 and 072 (product nomenclature, page 3)
- York form 036-21687-002-A-1105, Technical Guide, DJ 036, 048 and 060 (product nomenclature, pages 3–4; 2-stage gas heat ratings, page 14)
- York form 254597-YTG-B-0507, Technical Guide, Single Package Gas/Electric Units and Single Package Air Conditioners, DH 036, 048 and 060 (product nomenclature: example, 2-stage D/T heat codes, ZZ rule)
- Live product titles and model lists, as shown on each product page and series page
Rooftop units involve line voltage, gas and rotating parts. Service should be performed only by qualified personnel, following York's manual for your unit and your facility's lockout/tagout procedures.